V601 Pages: 6
a) 1000 Hz. b) 100 Hz. c) 500 Hz d) 250 Hz
27. If x(t) has the Fourier transform X(f), the Fourier transform of x(-t) is
a) >) 0) [X()| ९) -X(f) d) X(-f)

28. If x(t) is a real signal, then
a) Magnitude response and phase response are even.
b)Magnitude response and phase response are odd.
c)Magnitude response is even and phase response is odd.

d)Magnitude response is odd and phase response is even. E

29. Consider the network graph shown in the figure below .Which one of the following is ‘NOT’ a
tree of the group?
ம்‌ A

H H
a) b) c) d

OVW T

30. For the circuit shown, determine ‏رلا‎ if 125 5 sin(45t) and 11 ಎ0

∙ M = 2H
11 ८ Ny 7

ணை! லை ಐ
+ . ட ]
٤

v1 2 ಕ
i> 6 ‏3خ‎

) €

പച്‌ ‏سے‎

a) 450 cos(45t)v b) 450 sin(45t)v c) -450 cos(45t)v d) 45 sin(45t)v

31. Find the current I (in amperes) in the following circuit

Page 4 of 6